Every time a bike gets hit by a cage, everyone on these rider forums points at the cage INSTANTLY! Personally, I'm of the belief that 99% of the time it's the RIDER'S FAULT! If you use these videos as a learning tool, it might actually save your life someday.
But if you guys want to point at the cages all the time, and play the victim's role all of the time...go for it. As for me, you won't see me getting rear-ended by anyone because I ride more defensively than that. That rider had no business being in the left lane while there was obviously something going on in the left berm. He should've been in the RIGHT LANE.
Yes, it dangerous out there...but LET'S USE OUR HEAD!!!